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introduction：闸阀简介:闸阀的启闭件是闸板，闸板的运动方向与流体方向相垂直，闸阀只能作全开和全关,不能作调节和节流。闸板有两个密封面,最常用的模式闸板阀的两个密封面形成楔形、楔形角随阀门参数而异,通常为50,介质温度不高时为2°52'。楔式闸阀的闸板可以做成一个整 体，叫做刚性闸板；也可以做成能产生微量变形的闸板,以改善其工艺性,弥补密封面角度在加工过程中产生的偏差,这种闸板叫做弹性闸板。 闸阀关闭时,密封面
2015-01-29 Reading quantity 2798
introduction： In recent years，Due to grinding wheel、Controls、The development of techniques such as measurement and vibration，TIMKENbearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]New grinding technology and process equipment are constantly applied，There are mainly the following aspects： 1.High speed grinding technology is widely used，The inner surface
2015-01-29 Reading quantity 1454
introduction：Shanghai Gongye Zidonghua Yibiao Yanjiusuo Shanghai Institute of Industrial Automation Instrumentation Shanghai Institute of Process Automation Instrumentation Industrial automation instrument research institution directly under the Ministry of Machinery and Electronics Industry of the Peoples Republic of China。1956Established in，Formerly known as the first Ministry of Machinery Industry thermal instrument Scientific Research Institute。Mainly engaged in industrial automation instrument research、Trial production and application，Its an industrial process
2015-01-29 Reading quantity 2798
introduction：For sealed thin-wall bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]，Production has been filled in the appropriate grease，Open the Settings seal on the host，To prevent grease leakage。Watch out for too little fat，It can easily lead to a lack of fat or dry friction，Influence life。Grease can cause excessive temperature rise。Large leakage of grease，Not only pollute the environment，
2015-01-29 Reading quantity 1546
introduction：1、Comply with casting equipment general operating procedures 2、Check whether the knock-out grid is cracked、Buffer rubber pad is worn or not，If the above situation，Maintenance personnel should be notified。 3、Check the tightness and wear of the triangle belt，If too tight or too loose、Or severely worn，Maintenance personnel should be notified of adjustment or replacement。 4、Start with a running test，Then run empty2-3minutes，Make sure everything is OK，Before production can proceed。 5、The casting must be lifted to the center of the drop bed，Before we can do shakeout。 6、Remove and reconcile surrounding sand regularly，Achieve civilized production。 7、After work，Not allowed to cast
2015-01-29 Reading quantity 2825
introduction：1.Fan bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Technical key points analysis 1.1Yaw bearing assembly（660PME047） The yaw bearing assembly is a guarantee for the fan to track the wind direction change in time。When the fan starts to deflect，Yaw accelerationεA moment of impact will be generatedM=Iε（
2015-01-29 Reading quantity 1539
introduction： For use bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]As for，Making noise is quite common。Even ifFAGbearing[FAGbearing:The main shaft bearing is made of a solid inner ring、Outer ring、The ball、And a single row angular contact consisting of a cage assembly with a solid window cage
2015-01-29 Reading quantity 1497
introduction： ①Miniature bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]：every10～15The sleeve bearing goes into a plastic cylinder，every5～10A plastic tube goes into a cardboard box（Or bag、packaging）。 ②In the、Small bearing： Polythene film for multiple sets of bearings、External kraft paper or polyethylene composite paper for wrapping；
2015-01-29 Reading quantity 1591
introduction：CimatronIt is currently well-known in the countryCAMsoftware，Especially in the mold processing has a universal application。With the development of processing technology，The function of the software in high-speed machining is also continuously strengthened，This article introduces its latest versionCimatron E7Two special schemes for high speed milling——Insert milling and micro milling。 In recent years，With aerospace、The demand for mold manufacturing and precision micro-machining is increasingly extensive，High speed cutting technology has been greatly developed and applied。High-speed cutting is not only for machine tools、Control system、jig、cutter
2015-01-29 Reading quantity 3004
introduction：The sound produced by mechanical vibration when mechanical equipment is running。Noise is one of the important indexes to evaluate the quality of mechanical products。It reflects the level of design and manufacture of the product，Affect the economic value of the product，It is also a component of environmental noise。 Classification Mechanical noise can be divided into different sound sources 3class。①Aerodynamic noise：Produced by gas vibrations，Like ventilator、compressor、engine、Noise produced by jets, rockets, etc。②Mechanical noise：Produced by solid vibrations，cogwheel、bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”
2015-01-29 Reading quantity 2859
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